CN214891257U

CN214891257U - High-efficient ash falling device of economizer of thermal power plant

Info

Publication number: CN214891257U
Application number: CN202120905550.3U
Authority: CN
Inventors: 石国利; 孙剑; 全飞; 杨磊; 李玥; 吴敬; 薛海军
Original assignee: Inner Mongolia Jingneng Shuangxin Power Generation Co ltd
Current assignee: Inner Mongolia Jingneng Shuangxin Power Generation Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-26
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a high-efficiency ash falling device of a coal economizer of a thermal power plant, which comprises a flue main body which is vertically arranged, wherein a smoke inlet pipeline is horizontally arranged at one side of the flue main body, an ash discharge hopper is arranged at the bottom of the flue main body, an ash discharge valve is arranged on the ash discharge hopper, and a plurality of heat conduction fins are uniformly distributed in the flue main body from left to right; the utility model has the advantages that: the utility model discloses simple structure designs integral fin structure on the water pipe that is heated and increases heat transfer area, and the fin can produce high frequency microvibration simultaneously, can be timely with piling up on the fin dust shake off in the deposition fill, prevent that the dust from piling up on the fin in a large number, effectively improve heat exchange efficiency, the clearance is swift convenient, labour saving and time saving is worth using widely on a large scale.

Description

High-efficient ash falling device of economizer of thermal power plant

The technical field is as follows:

the utility model relates to an economizer technical field especially relates to a high-efficient ash falling device of economizer of thermal power plant.

Background art:

the water in a deaerator water tank of a thermal power plant is boosted by a water feeding pump and then is sent into an economizer by a high-pressure heater, and the water is heated by hot flue gas in the economizer and then enters a steam pocket at the top of a boiler; the heat of high-temperature flue gas is absorbed, the smoke exhaust temperature of the flue gas is reduced, energy is saved, and the efficiency is improved; in the prior art, in order to increase the heat transfer efficiency of the economizer, the fins are usually installed on the heated water pipe of the economizer, but flue gas dust is easily accumulated on the fins after the fins are added, the heat transfer efficiency is finally deteriorated or even the flue gas pipeline is blocked, the fins are cleaned, time and labor are wasted, and the normal production is seriously influenced.

The utility model has the following contents:

an object of the utility model is to provide a high-efficient ash device that falls of economizer of thermal power plant.

The content of the utility model is as follows: a high-efficiency ash falling device of a coal economizer of a thermal power plant comprises a flue main body which is vertically arranged, a smoke inlet pipeline is horizontally arranged on one side of the flue main body, an ash discharging hopper is arranged at the bottom of the flue main body, an ash discharging valve is arranged on the ash discharging hopper, a plurality of heat conducting fins are uniformly distributed in the flue main body from left to right, rotating shafts are horizontally and fixedly arranged on two sides of the bottom end of each heat conducting fin, the rotating shafts are rotatably connected with the inner wall of the flue main body, a plurality of long holes are uniformly distributed on the heat conducting fins, heated water pipes are horizontally movably inserted in the long holes, two ends of each heated water pipe are fixedly connected with the flue main body, the vertical size of each long hole is larger than the outer diameter of the heated water pipe, a water inlet cover and a water outlet cover are respectively and fixedly arranged on the outer walls on two sides of the flue main body, the water inlet cover and the water outlet cover are respectively provided with a water inlet pipe and a water outlet pipe, two ends of the heated water pipe are respectively communicated with the inner cavities of the water inlet cover and the water outlet cover, the top of the heat-conducting fin is provided with an adjusting through hole, an adjusting cross rod is inserted in the adjusting through hole, two ends of the adjusting cross rod penetrate through the flue main body and are respectively fixedly connected with a left limiting table and a right limiting table, the adjusting cross rod is sleeved with a compression spring, the compression spring is contacted with the right limiting table, two sides of the heat-conducting fin are respectively provided with a limiting pin, the limiting pins penetrate and are fixedly inserted on the adjusting cross rod, a cam is arranged outside the right limiting table, the working surface of the cam is tangent to the right limiting table, the cam is fixedly connected with a transmission shaft, two ends of the transmission shaft are rotatably connected with a rack, and the rack is fixedly arranged on the outer wall of the flue main body, the transmission shaft is in transmission connection with the motor.

The utility model has the advantages that: the utility model discloses simple structure designs integral fin structure on the water pipe that is heated and increases heat transfer area, and the fin can produce high frequency microvibration simultaneously, can be timely with piling up on the fin dust shake off in the deposition fill, prevent that the dust from piling up on the fin in a large number, when effectively improving heat exchange efficiency, the clearance is more convenient, labour saving and time saving, work efficiency is high, is worth using widely on a large scale.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a front view of the present invention;

fig. 4 is a perspective view of the heat-conducting fin of the present invention;

in the figure: the device comprises a flue main body 1, a smoke inlet pipeline 2, an ash discharge hopper 3, heat conducting fins 4, a long hole 5, a heated water pipe 6, a water inlet cover 7, a water outlet cover 8, an adjusting cross rod 9, a left limiting table 10, a right limiting table 11, a cam 12, a motor 13, a limiting pin 14, a rotating shaft 15 and a compression spring 16.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, a high-efficiency ash falling device of a coal economizer of a thermal power plant comprises a flue main body 1 which is vertically arranged, a smoke inlet pipeline 2 is horizontally arranged at one side of the flue main body 1, an ash discharge hopper is arranged at the bottom of the flue main body 1, an ash discharge valve is arranged on the ash discharge hopper, a plurality of heat conduction fins 4 are uniformly arranged in the flue main body 1 from left to right, rotating shafts 15 are horizontally and fixedly arranged at two sides of the bottom end of each heat conduction fin 4, the rotating shafts 15 are rotatably connected with the inner wall of the flue main body 1, a plurality of long holes 5 are uniformly arranged on the heat conduction fins 4, heated water pipes 6 are horizontally movably inserted in the long holes 5, two ends of each heated water pipe 6 are fixedly connected with the flue main body 1, and the vertical size of each long hole 5 is larger than the outer diameter of each heated water pipe 6, the outer walls of two sides of the flue main body 1 are respectively and fixedly provided with a water inlet cover 7 and a water outlet cover 8, the water inlet cover 7 and the water outlet cover 8 are respectively provided with a water inlet pipe and a water outlet pipe, two ends of the heated water pipe 6 are respectively communicated with the inner cavities of the water inlet cover 7 and the water outlet cover 8, the top of the heat conducting fin 4 is provided with an adjusting through hole, an adjusting cross rod 9 is inserted in the adjusting through hole, two ends of the adjusting cross rod 9 penetrate through the flue main body 1 and then are respectively and fixedly connected with a left limiting platform 10 and a right limiting platform 11, the adjusting cross rod 9 is sleeved with a compression spring 16, the compression spring 16 is contacted with the right limiting platform 11, two sides of the heat conducting fin 4 are respectively provided with a limiting pin 14, the limiting pin 14 penetrates through and is fixedly inserted on the adjusting cross rod 9, and a cam 12 is arranged outside the right limiting platform 11, the working face of the cam 12 is tangent to the right limiting table 11, the cam 12 is fixedly connected with a transmission shaft, two ends of the transmission shaft are rotatably connected with a rack, the rack is fixedly installed on the outer wall of the flue main body 1, and the transmission shaft is in transmission connection with a motor 13.

The working principle is as follows: during operation, the motor 13 can be started regularly to rotate the cam 12, so that the adjusting cross rod 9 can perform short-distance horizontal reciprocating motion, the heat-conducting fins 4 can generate micro-vibration with a larger amplitude, dust on the heat-conducting fins 4 can be shaken off to the dust discharging hopper 3 and can be discharged in time, and the dust can be prevented from being accumulated on the heat-conducting fins 4 in a large amount.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient ash falling device of economizer of thermal power plant, its includes flue main part (1) of vertical setting one side horizontal installation of flue main part (1) has into tobacco pipe way (2) the bottom of flue main part (1) is installed and is unloaded the ash bucket, install the ash discharge valve on the ash discharge bucket, its characterized in that: a plurality of heat-conducting fins (4) are uniformly distributed in the flue main body (1) from left to right, rotating shafts (15) are horizontally and fixedly arranged at two sides of the bottom end of each heat-conducting fin (4), the rotating shafts (15) are rotatably connected with the inner wall of the flue main body (1), a plurality of long holes (5) are uniformly distributed on the heat-conducting fins (4), heated water pipes (6) are horizontally and movably inserted in the long holes (5), two ends of each heated water pipe (6) are fixedly connected with the flue main body (1), the vertical size of each long hole (5) is larger than the outer diameter of each heated water pipe (6), a water inlet cover (7) and a water outlet cover (8) are respectively and fixedly arranged on the outer walls of two sides of the flue main body (1), and a water inlet pipe and a water outlet pipe are respectively arranged on the water inlet cover (7) and the water outlet cover (8), the two ends of the heated water pipe (6) are respectively communicated with the inner cavities of the water inlet cover (7) and the water outlet cover (8), the top of the heat-conducting fin (4) is provided with an adjusting through hole, an adjusting cross rod (9) is inserted in the adjusting through hole, the two ends of the adjusting cross rod (9) penetrate through the flue main body (1) and then are respectively fixedly connected with a left limiting table (10) and a right limiting table (11), the adjusting cross rod (9) is sleeved with a compression spring (16), the compression spring (16) is in contact with the right limiting table (11), limiting pins (14) are arranged on the two sides of the heat-conducting fin (4), the limiting pins (14) penetrate through and are fixedly inserted on the adjusting cross rod (9), a cam (12) is arranged outside the right limiting table (11), and the working surface of the cam (12) is tangent to the right limiting table (11), the flue is characterized in that the cam (12) is fixedly connected with the transmission shaft, two ends of the transmission shaft are rotatably connected with the rack, the rack is fixedly installed on the outer wall of the flue main body (1), and the transmission shaft is in transmission connection with the motor (13).